Method for Remotely Accessing Data and Local Apparatus Using the Method

1. A method for remotely accessing data, adapted to remotely access a storage unit of a local apparatus through a cloud server, wherein the local apparatus further comprises a network unit, an embedded controller and a system control chip, the method comprises: receiving a remote control signal through the network unit from the cloud server by the embedded controller and controlling a first switch unit of the local apparatus so as to determine whether to cut off a connection between the system control chip and the network unit by the first switch unit, wherein the first switch unit is coupled to the storage unit, the system control chip and the embedded controller; when receiving the remote control signal, determining by the embedded controller on whether a power management state of the local apparatus is a power saving state or a working state, wherein, under the power saving state, power supply to the system control chip is stopped; under a condition that the power management state is determined to be the working state and the system control chip obtains a control of the local apparatus, activating the first switch unit by the embedded controller to establish the connection between the network unit and the system control chip and to cut off a connection between the network unit and the storage unit, so that the system control chip accesses the storage unit and a data received by the network unit is transferred to the storage unit through the system control chip; and under a condition that the power management state is determined to be the power saving state and the embedded controller obtains the control of the local apparatus, activating the first switch unit by the embedded controller to cut off the connection between the system control chip and the network unit and to establish the connection between the network unit and the storage unit, so that the data received by the network unit is directly transferred to the storage unit through the first switch unit.

2. The method as recited in claim 1 , wherein the storage unit is a memory card, the first switch unit is coupled to a second switch unit through a first bridge, the second switch unit is coupled to the memory card through a second bridge, and the second switch unit is coupled to the system control chip and the embedded controller, the embedded controller is being used to control a switching of the second switch unit so as to determine whether the system control chip or the embedded controller is to access the memory card; wherein under the condition of being determined as already switched to the power saving state, comprises: activating the first switch unit to perform the switching by the embedded controller, so that the data is transferred to the first bridge through the first switch unit; and activating the second switch unit to perform the switching by the embedded controller, so that the data transferred via the first bridge is transferred to the memory card through the second switch unit.

3. The method as recited in claim 2 , wherein under the condition of being determined as already switched to the power saving state, further comprising: detecting whether the power management state has ever been switched to the working state within a time segment by a firmware unit of the local apparatus to; if the power management state has never been switched to the working state within the time segment, when reaching a preset time point, outputting a first signal from the firmware unit to the system control chip so as to wake up the system control chip, so that the system control chip is able to access the memory card; under a condition that the system control chip activates an operating system, transferring all the data in the memory card into a built-in storage through the second switch unit and deleting the data in the memory card by the system control chip, wherein the built-in storage is coupled to the system control chip; and after deleting the data in the memory card, switching the power management state to the power saving state.

4. The method as recited in claim 3 , wherein if the power management state has never been switched to the working state within the time segment, when reaching the preset time point, further comprises: outputting a second signal from the firmware unit to the embedded controller, so that the embedded controller, after disabling an audio output interface, a video output interface and a light-emitting unit interface, activates the operating system.

5. The method as recited in claim 2 , further comprising: when the power management state is the working state, activating the first switch unit to perform the switching by the embedded controller, so that the data is transferred to the system control chip through the first switch unit, and activating the second switch unit to perform the switching by the embedded controller, so that the system control chip accesses the memory card through the second switch unit.

6. The method as recited in claim 5 , when the power management state is switched to the working state, further comprising: checking whether a remaining capacity of the memory card is smaller than a default capacity by the system control chip; if the remaining capacity is smaller than the default capacity, transferring all the data in the memory card to a hard disk coupled to the system control chip and deleting the data in the memory card by the system control chip.

7. The method as recited in claim 1 , wherein the storage unit is a built-in storage, the first switch unit is coupled to a second switch unit through a first bridge, the system control chip is coupled to the second switch unit through a third switch unit and a third bridge, and the third switch unit is coupled to the built-in storage; under the condition of being determined as already switched to the power saving state, further comprises: activating the first switch unit to perform the switching by the embedded controller, so that the data is transferred to the first bridge through the first switch unit; activating the second switch unit to perform a switching by the embedded controller, so that the data transferred via the first bridge is transferred to the third bridge through the second switch unit; and activating the third switch unit to perform a switching by the embedded controller, so that the data transferred via the third bridge is transferred to the built-in storage through the third switch unit.

8. The method as recited in claim 7 , further comprising: when the power management state is the working state, activating the first switch unit to perform the switching by the embedded controller, so that the data is transferred to the system control chip through the first switch unit, and activating the third switch unit to perform the switching by the embedded controller, so that the system control chip accesses the built-in storage through the third switch unit.

9. A local apparatus, comprising: a network unit communicating with a cloud server; an embedded controller coupled to the network unit for receiving a remote control signal from the cloud server; a system control chip; and a first switch unit coupled to a storage unit, the embedded controller, the system control chip and the network unit, and configured to determine a connection relation between the system control chip and the network unit; wherein, when the embedded controller receives the remote control signal through the network unit from the cloud server, the embedded controller determines whether the a power management state of the local apparatus is a power saving state or a working state, wherein, under the power saving state, power supply to the system control chip is stopped, under a condition that the power management state is determined to be in the working state and the system control chip obtains a control of the local apparatus, the embedded controller activates the first switch unit to establish a connection between the system control chip and the network unit and to cut off a connection between the network unit and the storage unit, so that the system control chip accesses the storage unit and a data receiving by the network unit is transferred to the storage unit through the system control chip, under a condition that the power management state is determined to be the power saving state and the embedded controller obtains the control of the local apparatus, the embedded controller activates the first switch unit to cut off the connection between the system control chip and the network unit and to establish the connection between the network unit and the storage unit, so that the data received by the network unit is directly transferred to the storage unit through the first switch unit.

10. The local apparatus as recited in claim 9 , wherein the storage unit is a memory card, and the local apparatus further comprises: a second switch unit coupled to the system control chip and the embedded controller; a first bridge coupled between the first switch unit and the second switch unit; and a second bridge coupled between the second switch unit and the memory card; wherein, under the condition of being determined as already switched to the power saving state, the embedded controller activates the first switch unit to switch, so that the data is transferred to the first bridge through the first switch unit, and the embedded controller activates the second switch unit to switch, so that the data transferred via the first bridge is transferred to the memory card through the second switch unit.

11. The local apparatus as recited in claim 10 , further comprising: a firmware unit coupled to the system control chip and the embedded controller; and a peripheral switch unit coupled between the system control chip and the embedded controller, and is coupled to an audio output interface, a video output interface and a light-emitting unit interface; wherein, when the firmware unit determines that the power management state has never been switched to the working state within a time segment under the power saving state, and when a preset time point is reached, the firmware unit outputs a first signal to the system control chip to wake up the system control chip, so that the system control chip is able to access the memory card, and the firmware unit outputs a second signal to the embedded controller, so that the embedded controller, after disabling the audio output interface, the video output interface and the light-emitting unit interface via the peripheral switch unit, activates an operating system; under a condition that the operating system is activated, the system control chip transfers all the data in the memory card into a built-in storage through the second switch unit and deletes the data in the memory card, wherein the built-in storage is coupled to the system control chip, and after the data in the memory card is deleted, the power management state is switched to the power saving state.

12. The local apparatus as recited in claim 10 , wherein when the power management state is the working state, the embedded controller activates the first switch unit to switch, so that the data is transferred to the system control chip through the first switch unit, and the embedded controller activates the second switch unit to switch, so that system control chip accesses the memory card through the second switch unit; if the system control chip detects that a remaining capacity of the memory card is smaller than a default capacity, the system control chip transfers all the data in the memory card to a built-in storage coupled to the system control chip and deletes the data in the memory card.

13. The local apparatus as recited in claim 9 , wherein the storage unit is a built-in storage, and the local apparatus further comprises: a second switch unit; a third switch unit coupled to the built-in storage; a first bridge coupled between the first switch unit and the second switch unit; and a third bridge coupled between the second switch unit and the third switch unit; under the condition of being determined as already switched to the power saving state, the embedded controller activates the first switch unit to switch, so that the data is transferred to the first bridge through the first switch unit; the embedded controller activates the second switch unit to switch, so that the data transferred via the first bridge is transferred to the third bridge through the second switch unit; and the embedded controller activates the third switch unit to switch, so that the data transferred via the third bridge is transferred to the built-in storage through the third switch unit.

14. The local apparatus as recited in claim 13 , wherein when the power management state is under the working state, the embedded controller activates the first switch unit to switch, so that the data is transferred to the system control chip through the first switch unit, and the embedded controller activates the third switch unit to switch, so that the system control chip accesses the built-in storage through the third switch unit.